Spanish Prime Minister Mariano Rajoy said here Tuesday that Madrid's economic reforms exemplify the kind of decisions Turkey must take in order to obtain acceptance into the European Union, an ambition that he said Spain will continue to support without reservations.

Rajoy and Turkish counterpart Recep Tayyip Erdogan presided in Ankara over the bilateral 5th High-Level Meeting.

Both leaders said relations between their two countries have no significant problems and that they seek growing collaboration in all fields.

Erdogan acknowledged in his speech how much support his country has had from Spain since Turkey first began seeking accession to the EU.

"The most relevant bond uniting Spain and Turkey is the European Union," Rajoy said, recalling that Spain was finally admitted to the EU after "long and complex negotiations."

Spain is aware of the complexities and frustrations that joining the EU entails, he said, but urged Turkey to keep working at it and to put in place all the reforms necessary to make it happen.

"Building big projects in common requires a large dose of political ambition, determination and willingness to make sacrifices, and the reforms are never easy, as Spain's recent experiences can show you," Rajoy said.

Spain supports and will continue to support Turkey's efforts along that line," the Spanish prime minister said.

The two heads of government highlighted the increase in bilateral trade and investment, especially the collaboration of Turkish and Spanish firms.

As an example they cited Ankara's M3 subway line, constructed by Spain's Comsa Emte and Turkish company Acilim Insaatto, and which will be inaugurated Wednesday by Rajoy and Erdogan.

Erdogan mentioned Spanish participation in a new refinery in Turkey and the collaboration of Spain's Navantia in the construction of a Turkish aircraft carrier, which he said has great strategic importance. EFE